The plane of Theros is ruled by a pantheon of all-powerful gods. Krakens, minotaurs, and other monsters threaten the safety of walled cities. Heroes rise to battle, bolstered by their devotion to the gods.

No longer content to walk the planes of the Multiverse seeking pleasure, the planeswalker Xenagos returns to Theros to become the god of revels. The boundaries that separate everyday existence from Nyx are growing dangerously thin. Strange creatures of enchantment, called Nyxborn or Born of the Gods, are pouring into the mortal world as Xenagos threatens to disrupt the very nature of the plane.

The plane of Theros is in chaos. Gods and mortals are pitted against each other, and terrifying monsters stalk the land. Heroes strive for glory while new and terrifying constellations take shape in the night sky.